Core quality estimation system, core quality estimation method, non-transitory storage medium

A core quality estimation system that estimates quality of a core obtained by a process of moving a kneading tank containing kneaded sand to a mold, filling the mold with the kneaded sand from the kneading tank, and shaping the kneaded sand by heating, the core quality estimation system comprising a computer that executes operations of:

• acquiring mold temperature information of the mold from a temperature sensor provided in the mold;
• acquiring environmental information regarding a surrounding environment in which the core is formed;
• estimating the quality of the core based on (i) the mold temperature information of the mold during filling of the mold with the kneaded sand or during heating of the kneaded sand in the mold, (ii) the environmental information, and (iii) a behavior information of the kneaded sand during the filling of the mold with the kneaded sand, obtained by using a behavior analysis of the kneaded sand inside the mold using computer aided engineering (CAE);
• and
• controlling an amount of water added, an amount of core sand added, an amount of surfactant added, and a kneading time included in molding conditions during the kneading of the kneaded sand in the kneading tank, and controlling the mold temperature included in the molding conditions when filling the kneaded sand into the mold, based on results of the estimating using the CAE.